Product comparison
Sports Research Vitamin D3 vs Sports Research Vitamin D3
Sports Research·Sports Research

30 servings
Total
Choose if…
- ✓You care about salt/form heuristics encoded in our rubric.
- ✓You want the higher conservative safety lane score.
Sports Research Vitamin D3 leads overall
Thin race: only 5 points between totals

5000 iu · 30 servings · Vegan
Total
Choose if…
- Either option is acceptable - use the table above for the lane you care about.
Purchasing
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Choose Sports Research Vitamin D3 if…
- you want the higher overall decision score in this head-to-head.
Choose Sports Research Vitamin D3 if…
- you still want to verify the latest label, price, and stock on the retailer.

Price and availability may change. Check the latest price on Amazon.

Price and availability may change. Check the latest price on Amazon.
Not sure this is the best choice?
Split decision - tradeoffs
Close call- Sports Research Vitamin D3 leads on ingredient fit (Δ ≈ 13 pts).
- Sports Research Vitamin D3 leads on safety (Δ ≈ 10 pts).
- Sports Research Vitamin D3 leads on formula (Δ ≈ 6 pts).
Decision table
- ValueTie band
- FormulaSports Research Vitamin D3 +6
- Label clarityTie band
- AdditivesTie band
- TransparencyTie band
| Metric | Sports Research Vitamin D3 | Sports Research Vitamin D3 |
|---|---|---|
| Total score | 74 | 69 |
| Ingredient fit | 94 | 81 |
| Dosage plausibility | 67 | 67 |
| Formula quality | 78 | 72 |
| Additives & label (combined lane) | 72 | 72 |
| Excipient / additive burden | 72 | 72 |
| Label clarity | 72 | 72 |
| Transparency | 54 | 54 |
| Value | 60 | 60 |
| Safety | 88 | 78 |
| Form | other | other |
| Serving size | 1 serving | 1 serving |
| Servings / container | 30 | 30 |
| Certifications | - | - |
| Latest price on file | - | - |
Head-to-head verdict
Razor-thin margin - Sports Research Vitamin D3 edges it; both are defensible.
Following the winner captures about +5 points on our total in this matchup.
Data confidence (catalog)
Category-adjusted decision
Rubric lift if you switch
- +13 on ingredient fit
- +10 on safety
- +6 on formula
Where Sports Research Vitamin D3 leads
- Sports Research Vitamin D3 leads on ingredient fit (Δ ≈ 13 pts).
- Sports Research Vitamin D3 leads on safety (Δ ≈ 10 pts).
- Sports Research Vitamin D3 leads on formula (Δ ≈ 6 pts).
Where Sports Research Vitamin D3 leads
- No decisive lane wins versus the other SKU in our tie bands.
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Best in this category
See how every tracked Vitamin D SKU ranks - overall, value, transparency, and certifications.
Open best Vitamin D rankingsIngredient intelligence
How this compare works
We diff the same product lanes used on SKU pages - including additive burden and label clarity - with tie bands so tiny gaps are not oversold. Open each product review for certifications, price history, and full notes.
Informational only - not medical advice, diagnosis, or treatment.